Searched for: subject%3A%22Speed%22
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Herfst, R.W. (author), Bijster, R.J.F. (author), Dekker, A. (author), Wei, J. (author), van Zeijl, H.W. (author), Kruidhof, R. (author), Sadeghian Marnani, H. (author)
High resolution and high throughput imaging are typically mutually exclusive. While there is a wide range of techniques to image features beyond the diffraction limit of light, they all have their own benefits and drawbacks, but they are often very slow compared to optical systems. As such, extending the performance of optical microscopes...
conference paper 2017
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Rubenstein, C.D. (author), den Hartog, E.A. (author), Deaton, A.S. (author), Bogerd, C.P. (author), de Kant, S. (author)
A major concern for responders to hazardous materials (HazMat) incidents is the heat strain that is caused by fully encapsulated impermeable chemical protective suits. In a research project, funded by the US Department of Defense, the thermal strain experienced when wearing these suits was studied. One particular area of interest was the fluid...
article 2017
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van der Horst, A.R.A. (author), Thierry, M.C. (author), Vet, J.M. (author), Rahman, A.F. (author)
With 21,000 people annually killed in road traffic (estimated figure by World Health Organization), Bangladesh has one of the highest fatality rates in the world. Vulnerable road users (VRUs) account for over 50% of road traffic casualties, and 70% of casualties occur in rural areas. As in many Low and Middle Income Countries (LMICs), the...
article 2016
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Engbers, C. (author), Dubbeldam, R. (author), Buurke, J.H. (author), Schaake, L. (author), de Goede, M. (author), Rietman, J.S. (author), de Waard, D. (author)
The aim of this study was to evaluate the effects on behaviour, mental effort and acceptance of a simple prototype of an electronic rear-view assistance system designed for older cyclists that are at risk of falls. The prototype was incorporated into a simple cycling simulator and provided information about traffic from behind in two modalities:...
article 2016
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Sertlek, H.Ö. (author), Binnerts, B. (author), Ainslie, M.A. (author)
Sound mapping over large areas can be computationally expensive because of the large number of sources and large source-receiver separations involved. In order to facilitate computation, a simplifying assumption sometimes made is to neglect the sound speed gradient in shallow water. The accuracy of this assumption is investigated for ship...
article 2016
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Fan, J.T. (author), Weerheijm, J. (author), Sluys, L.J. (author)
Multiple-particles-polymer systems of a polyurethane elastomeric matrix embedding 25wt.% and 50wt.% 0.5 mm-diameter PMMA particles were investigated using a split Hopkinson pressure bar (SHPB) setup for revealing the dynamic compressive mechanical response. Taking the 25wt.%-particles-polymer system as a reference case, the characteristics of...
article 2016
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Carton, E.P. (author), Roebroeks, G.H.J.J. (author), Weerheijm, J. (author), Diederen, A.M. (author), Kwint, M.E. (author)
Several specially designed experimental techniques including an alternative test method have been developed for the evaluation of ceramic based armor. Armor grade ceramics and a range of combined materials have been tested using 7.62 AP rounds. Using the energy method [12] the dwell-time and total energy absorbed from the AP core were determined...
conference paper 2016
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Fan, J.T. (author), Weerheijm, J. (author), Sluys, L.J. (author)
The dynamic mechanical behaviour of a soft polymer material (Clear Flex 75) was studied using a split Hopkinson pressure bar (SHPB) apparatus. Mechanical properties have been determined at moderate to high strain rates. Real time deformation and fracture were recorded using a high-speed camera. Fracture micrographs were examined to explore the...
article 2015
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Fan, J.T. (author), Weerheijm, J. (author), Sluys, L.J. (author)
The dynamic tensile mechanical response of a soft polymer material (Clear Flex 75) is investigated using a split Hopkinson tension bar (SHTB). Stress-strain relations are derived to reveal the mechanical properties at moderate and high strain rates. These relations appear to be rate dependent. Under static loading, the polymer exhibits an...
article 2015
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Schmeitz, A.J.C. (author), Alirezaei, M. (author)
With higher level of vehicle automation, it becomes increasingly important to know the maximum possible tyre forces during normal driving. An interesting method in this respect is estimating the tyre-road friction from the resonance in the wheel speed signal, excited by road roughness. A simulation environment using the MF-Swift tyre model is...
conference paper 2015
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Duivenvoorden, K. (author), Hogema, J. (author), Hagenzieker, M. (author), Wegman, F. (author)
Methods: An experiment was conducted in a moving-base driving simulator. Thirty participants completed 3 runs each in 3 conditions: a baseline, a plateau, and a chicane condition. Participants drove an 80 km/h rural distributor road with 8 intersections. Eight cyclist scenarios were developed varying in the number of cyclists and the direction...
article 2015
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Dittrich, M.G. (author), Graafland, F. (author), Eisses, A.R. (author), Nijhof, M.J.J. (author)
Rail dampers and sound absorbing plates have been tested on a high speed railway slab track in a walled cutting at a noise sensitive location. Their noise reduction has been determined from pass-by measurements during service and predicted using BEM calculations. The cutting depth, noise barrier height and configuration vary along the length of...
conference paper 2015
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Binnerts, B. (author), von Benda-Beckmann, A.M. (author), van Beek, P.J.G. (author)
In the oil & gas industry there is a trend towards more subsea activities. To improve gas recovery from existing and new fields at greater depths, the produced gas will be compressed, processed and transported via subsea templates and underwater networks (pipelines, flexible risers, etc.). Besides the huge consequences for the subsea...
conference paper 2014
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Risto, M. (author), Martens, M.H. (author)
In order to guarantee safety, drivers are advised to keep large enough headways. However, headway advice is often provided in terms of time headway, without knowing whether this is the right way of presenting the advice. According to a psychophysics theory, attaining a time headway would indeed allow drivers to show higher headway choice...
article 2013
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Abadjieva, E. (author), Khoe, Y.S. (author)
The interaction of thin ceramic tiles with AP8 (WC core, 7,62 mm) at 1000 m/s velocity has been studied experimentally and numerically. “Thin” ceramic tiles refers here to ratio of the tile thickness (t) to the projectile diameter, (d), t/d@ 1, as they are both in the same order. The method applied to visualize the penetration dynamics has been...
conference paper 2013
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van Bokhorst, E. (author), Driessen, F.P.G. (author), Nennie, E.D. (author), Remans, D. (author), Smeulers, J.P.M. (author)
Caused by the global increase of demand for natural gas the interest in offshore liquefaction, transport and re-gasification grows rapidly. The installations that are presently developed are in essence copies of the onshore systems that are already many years in operation. However, the fact that the installation is installed on a ship imposes...
conference paper 2013
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Netten, B.D. (author), Hegyi, A. (author), Wang, M. (author), Schakel, W. (author), Yuan, Y. (author), Schreiter, T. (author), van Arem, B. (author), van Leeuwen, C.J. (author), Alkim, T. (author)
Dynamax is a road side based system using the SPECIALIST control algorithm and inductive loops. Dynamax field tests showed that moving jams can be effectively resolved by dynamic speed measures [1,5]. This paper focuses on Dynamax In Car, which extends the road side infrastructure with a V2I cooperative approach. V2I cooperation is used to...
conference paper 2013
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van Dorp, P. (author)
In this paper, a new signal processing technique for Multiple-Input Multiple-Output (MIMO) image processing of a Linear Frequency-Modulated Continuous Wave (LFMCW) automotive radar was developed. The image is the range-speed-direction data cube. The technique comprises two improvements to the standard MIMO image processing: 1) A fast unambiguous...
conference paper 2013
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van Dorp, P. (author)
In this paper, a new signal processing technique for Multiple-Input Multiple-Output (MIMO) image processing of a Linear Frequency-Modulated Continuous Wave (LFMCW) automotive radar was developed. The image is the range-speed-direction data cube. The technique comprises two improvements to the standard MIMO image processing: 1) A fast unambiguous...
conference paper 2013
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van Dijk, N.J.M. (author), van de Wouw, N. (author), Doppenberg, E.J.J. (author), Oosterling, H.A.J. (author), Nijmeijer, H. (author)
Chatter is an instability phenomenon in machining processes which limits productivity and results in inferior workpiece quality, noise and rapid tool wear. The increasing demand for productivity in the manufacturing community motivates the development of an active control strategy to shape the chatter stability boundary of manufacturing...
article 2012
Searched for: subject%3A%22Speed%22
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